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MADEXP

DIY, electronics and experiments

  • Downloads
    • Schematics/Gerber
    • Photomultipliers
    • Scintillators
    • Software
  • Instruments
    • Autunite specimen from China
    • Radioactive sources
    • Dosimeter
      • BW radiation dosimeter, tactical, set 0065 B
    • Geiger Counters
      • SV500 Geiger counter from German Army
    • Crystal scintillators
      • BC408 BC412 Plastic scintillators from Bicron
      • NaI(Tl) Crystal scintillator
      • LYSO crystal scintillators
      • Anthracene
      • CsI undoped
      • OST 40x40mm NaI(Tl)
      • CsI(Na) cutted and polished at home
    • Photomultiplier tubes
      • Hamamatsu R6095 photomultiplier tube
      • FEU84-5 ФЭУ-84-5 PMT photomultiplier tube for gamma spectrometry
  • Geiger & X-Ray tubes
    • NER10 X-Ray generator
    • ZP1210
    • DDR/GDR tubes
      • VEB Robotron 70013
    • Russian tubes
      • M-series
        • MSTR-4 MCTP-4 Alpha-Beta-Gamma geiger tube
        • MS-4 γ-selective Geiger counter
        • MS-6 MC-6 γ-selective geiger counter
        • MS-13 MC-13 glass tube
        • MST17 “MCT17” Mica window Geiger tube
      • S-series
        • SI3BG CИ-3БГ Geiger Muller Tube
        • STS-6 CTC-6 Geiger Muller Tube
        • SI-16bg
        • SI-19BG(M) си19бг-м mini Geiger tube
        • SBM20 The quintessential russian geiger tube.
        • SBM-21 Micro geiger tube
        • SI-22G CИ-22Г Geiger Muller tube
        • SI-31G geiger
      • others
        • AC-1 High-sens β-selective Geiger counter
  • Electronics
    • MadExp PMT adapter
    • Homebrew a Geiger rate meter
    • Simple Geiger clicker
    • Inside a russian Ge transistor
    • Collins airborne meteo RADAR
    • High Voltage
      • 5V to 900V step-up converter module
      • High voltage generation from 3.3-5V
    • Amiga & retrocomputing
      • ZX81 repair & mods
      • Amiga DB23 to SCART cable
      • TF530 Amiga accellerator
      • Z80 Single Board Computer
    • Tube Tech & audio
      • EL84 Guitar Amplifier
      • Tube audio amplifier
      • NE5534 RIAA amplifier
      • CM108AH USB soundcard on a chip
      • EL84 Holder 3D printed
  • Programming
    • WinCUPL
    • STM32
      • Random “Walker”
      • STM32 Mbed Quadrature encoder input
  • Mechanics
    • CNC 3020 USB
    • PRT-E750W & PRT-E1500W vfd settings
  • Ham Radio
    • CODAN 9360 hack software
    • PRC320 power supply repair
    • Mosley TA-33-JRN
    • Antenna rotor clean up
  • D.I.Y
    • Lead castle
    • The Bequerel experiment
    • Trinitite HPGe spectrum
    • DIY scintillation probe: the easy way
    • DIY scintillation probe: alluminium enclosures
    • DIY Scintillation probe: 63x63mm NaI(Tl)
    • X-Ray machine V1
    • 12V to 6kV High Voltage transformer
    • X-Ray dental film ECO 30

Communiations from the Admin

Category: Admin’s blog

Cat Links Admin's blog

EL84 Guitar Amplifier

Posted on December 5, 2020December 5, 2020 l-i-papadopol

Recently I’ve designed and built a simple yet very nice playing guitar amplifier. I’ve designed it keeping in mind that

Continue readingEL84 Guitar Amplifier

Cat Links Admin's blog

EL84 Holder 3D printed

Posted on December 3, 2020 l-i-papadopol

I’ve made this cute 3D printed holder for EL84 tubes. It’s compatible only with western made tubes not Russians/Eastern block

Continue readingEL84 Holder 3D printed

Cat Links Admin's blog

DIY Scintillation probe: 63x63mm NaI(Tl)

Posted on October 25, 2019October 29, 2019 l-i-papadopol

Some time ago I’ve won a 63×63 NaI(Tl) crystal for around 80€ at eBay. It is an SDN52 a special

Continue readingDIY Scintillation probe: 63x63mm NaI(Tl)

Cat Links Admin's blog

DIY scintillation probe: alluminium enclosures

Posted on July 6, 2019August 7, 2019 l-i-papadopol

How to make a scintillation probe with aluminium enclosure? Is not that hard if you have a lathe, a mill

Continue readingDIY scintillation probe: alluminium enclosures

Cat Links Admin's blog

DIY scintillation probe: the easy way

Posted on June 9, 2019July 26, 2019 l-i-papadopol

This guide is under continuative update. updated 9 June 2019 updated 12 June 2019 updated 21 June 2019 Intro Many

Continue readingDIY scintillation probe: the easy way

Cat Links Admin's blog

LYSO + ZnS(Ag) new order

Posted on May 22, 2019 l-i-papadopol

Today I’ve made a new order from The Rad Lab. This time I’ve found on it’s ebay store a stock

Continue readingLYSO + ZnS(Ag) new order

Cat Links Admin's blog, Ham Radio

Antenna rotor clean up

Posted on April 21, 2019April 21, 2019 l-i-papadopol

Some months ago I’ve received from the local A.R.I. radio club an old antenna rotor. I think it is a

Continue readingAntenna rotor clean up

Cat Links Admin's blog, Ham Radio

Mosley TA-33-JRN

Posted on April 14, 2019April 19, 2019 l-i-papadopol

I’m an ham radio operator since year 2008. I’ve started this hobby with simple and relatively cheap equipment: an FT757GX

Continue readingMosley TA-33-JRN

Cat Links Admin's blog, High Voltage, Schematics & Homebrew

High voltage generation from 3.3-5V

Posted on February 2, 2019February 2, 2019 l-i-papadopol

This post describes my standard DC-DC HV converter You know, to power up geiger tubes or photomultipliers there the need

Continue readingHigh voltage generation from 3.3-5V

Cat Links Admin's blog, Ham Radio

PRC320 power supply repair

Posted on January 6, 2019 l-i-papadopol

My military HF manpack radio PRC320, 3 months after I’ve bought it, started to make a whistle and was not

Continue readingPRC320 power supply repair

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Info & Contact

Hi, my name is Papadopol Lucian. Feel free to contact me, send an e-mail or you can contact me on:

E-mail: “iz6nnh # gmail.com” replacing # with @ Please don’t send me junk!

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